Read the declared units
Upload the file to see what its width and height mean in millimetres, inches and 96-DPI pixels.
SVG SIZE
Set the physical size of an SVG
Open a design, see its real physical dimensions, then save a separate copy at the size your laser, cutter, printer or project needs.
Drop an SVG here
One SVG at a time · stays in your browser
Private by design. Your design is never uploaded.SVG SIZE
Your design’s size right now
File
Declared size
viewBox
Ratio
Design preview
Use the controls to inspect the uploaded design. This is a visual preview; it does not change the original file.
Size of this design
An SVG can declare dimensions in millimetres, inches, points or pixels. Values below describe the whole SVG canvas/design, not individual parts inside it.
- Millimetres
- —
- Inches
- —
- Pixels at 96 DPI
- —
Create a copy at another size
Only the physical width and height written in the SVG are changed. The drawing, paths and viewBox remain untouched, so always confirm the imported result in your production software.
Keeping the ratio prevents accidental stretching.
How to use
Find the reason for a wrong-size SVG
Compare with your intent
Compare the result with the size of the finished object, sheet or working area you actually need.
Save a safe copy
Download a separate SVG with the intended physical size, then check the import in the production application.
Before you change a file
Units, pixels and viewBox are different things
- Width and height declare the physical presentation size of an SVG.
- The viewBox defines the internal drawing coordinate system and is often essential for predictable scaling.
- Pixels in SVG use a conventional conversion; they are not a reliable physical unit until the import software interprets them.
- Changing only physical dimensions can scale a design without changing its internal paths, which is helpful but should always be verified after import.
Questions and answers
Before you export
Why does the same SVG open at different sizes?
Apps can interpret missing units, pixels, a viewBox or import preferences differently. Checking the declared physical dimensions helps identify the common cause.
Does this convert the artwork to millimetres?
It creates a copy with width and height declared in millimetres. It deliberately keeps the drawing and viewBox untouched to avoid changing the artwork unexpectedly.
Will it fix every import problem?
No. Complex transforms, strokes, clipping paths and software import rules can still affect a file. Always check the final size in the app used for production.